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The table below gives for the value of continuous function $f$ at each $x$ -value. Using the Intermediate Value Theorem and the information in the table, determine the smallest interval in which the function must have a root.

$x$	$f(x)$
$-5$	$1.25$
$-4$	$2.03$
$-3$	$3.05$
$-2$	$3.01$
$-1$	$1.02$
$0$	$-0.69$
$1$	$-2.43$
$2$	$-3.45$
$3$	$-6.76$
$4$	$-7.93$
$5$	$-7.93$

Answer (in interval notation):